MAMA: Fixed comment related warning in MamaSubscription.h
MAMA: Fixed comment related warning in MamaSubscription.h

A dodgy merge resulted in an extraneous line in a comment which causes a
warning in GCC. This change reverts this error.

Signed-off-by: Frank Quinn <8e90d92b6718ce33106d66386b493961926d3d82@gmail.com>

dpauls/OpenMAMA,dpauls/OpenMAMA,fquinner/OpenMAMA,fquinner/OpenMAMA,philippreston/OpenMAMA,philippreston/OpenMAMA,philippreston/OpenMAMA,dpauls/OpenMAMA,fquinner/OpenMAMA,philippreston/OpenMAMA,fquinner/OpenMAMA,philippreston/OpenMAMA,fquinner/OpenMAMA,fquinner/OpenMAMA,philippreston/OpenMAMA,fquinner/OpenMAMA,dpauls/OpenMAMA,dpauls/OpenMAMA,dpauls/OpenMAMA,philippreston/OpenMAMA,dpauls/OpenMAMA